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Why does my cat have small bumps on his back and a large neck lump?

Updated On September 23rd, 2025

Pet's info: Cat | American Shorthair | Male | neutered | 13 years and 8 months old | 10 lbs

Hi my cat has like little bumps on his back and a bigger one on his neck

1 Answer

Most Helpful Answer

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Answered By Dr Stafford, BVetMed, MRCVS

Veterinarian

Published on January 28th, 2018

Hi there, it is hard to give you a specific answer regarding these bumps without seeing them, but I will try and give you some suggestions. If the lumps have just come up and feel soft they could be urticaria from an allergic reaction. Likewise if they are fairly new and are red or hot they may be caused by a skin infection. However, if the lumps have been there for a while again they could be infection but they could also be little growths in the skin. Have a good feel and if they are under the skin and soft they could be fatty lumps. If they are hard and in the skin they could be cysts, and if on top get may be warts. Unfortunately there is also the possibility the growths could be tumours. If you like you can repost with some photographs or more information and we can try and help more. I would recommend going to the vet to have he lumps checked f they have been there for a while. If they have just come up and don't look infected you could wait a day or so and give an antihistamine in case of allergic reaction.

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